Mitsubishi Electric Mr. SLim SEZ-KD18NA User manual

Job Name: Location: Date:
Purchaser: Engineer:
Submitted to: For Reference Approval Construction
System Designation: Schedule No.:
Cooling*
Rated Capacity...............................17,200 Btu/h
Total Input.........................................90 W
Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.74 A
Heating*
Rated Capacity...............................20,100 Btu/h
Total Input.........................................70 W
Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.63 A
* Rating Conditions (Cooling) - Indoor: 80ºF (27ºC) DB / 67ºF (19ºC) WB.
Outdoor: 95ºF (35ºC) DB / 75ºF (24ºC) WB.
(Heating) - Indoor: 70ºF (21ºC) DB / 60ºF (16ºC) WB. Outdoor: 47ºF (8ºC) DB /
43ºF (6ºC) WB.



Power Supply ....................208 / 230V, 1-Phase, 60 Hz
MCA .............................................. 1 A
Voltage
Indoor - Outdoor S1-S2 ......................AC 208 / 230V
Indoor - Outdoor S2-S3 ............................DC 24V
Indoor Unit: SEZ-KD18NA
Fan
Type x Quantity............................ Sirocco Fan x 4
Motor .....................Direct-driven DC Brushless Motor
Motor Output.......................................96 W
Airow (Lo - Med - Hi)...................423 - 529 - 635 CFM
Air Filter ........................ Polypropylene Honeycomb
External Static Pressure...........0.02 - 0.06 - 0.14 - 0.20"WG
Sound Pressure Level (Lo - Med - Hi) .........30 - 34 - 38 dB(A)
 
W 46-7/8 / 1,190
D 27-9/16 / 700
H 7-7/8 / 200
Weight. ................................... 60 lbs. / 27 kg
Field Drainpipe Size O.D......................1-1/4" / 32 mm
Wall-mounted Remote Controller ................. PAR-21MAA
(See Data Submittal Sheet)
Refrigerant Type .................................. R410A
Refrigerant Pipe Size O.D.
Gas Side .................................1/2" / 12.7 mm
Liquid Side................................1/4" / 6.35 mm
Connection Method ................................Flared
 
Remote Controller: PAR-21MAA

• M-NET Control Adapter (MAC-399IF)
• External Heat Adapter (PAC-YU25HT)
• CN24 Relay Kit (CN24RELAY-KIT-CM)
• Three-pole Disconnect Switch (TAZ-MS303)

• Ceiling-concealed ducted indoor unit for residential applications
• Ultra thin body: 7-7/8"high
• Built-in drain mechanism for condensate removal; lifts to 21-11/16"
• Air lter is included with indoor unit
• Quiet operation ― as low as 23 dBA
• PAR-21MAA wired remote controller is included
• Indoor unit powered from outdoor unit using A-Control
• Automatic fan speed control
• Auto restart following a power outage
• Limited warranty: one year on parts and defects


• All Horizontal-ducted Indoor Units:

• Select Wall-mounted Indoor Units:

and

• A combination of both Horizontal-ducted
and Wall-mounted Indoor Units
Refer to the separate submittal forms for the
MSZ-A and MSZ-FD Indoor Units and MXZ
Outdoor Units.
Horizontal-ducted Indoor Unit: SEZ-KD-NA
Remote Controller
PAR-21MAA -
Packaged with SEZ
Wall-mounted Indoor Unit: MSZ-A09, 12, 15, 17, 24NA
Wireless Remote Controller -
Packaged with MSZ-A and MSZ-FD
(Optional Wired Remote Controller
PAR-21MAA)
Outdoor Unit: MXZ-3A30NA Wall-mounted Indoor Unit: MSZ-FD-NA


SEZ-KD18NA INDoor FAN PErFormANcE AND corrEctED AIr Flow chArtS
SEZ-KD18NA
(External static pressure 0.06[in.WG](15Pa)) 208/230V 60Hz
9 10111213141516171819
0
10
20
30
40
50
External static pressure [in.WG](Pa)
[0.20]
[0.16]
[0.12]
[0.08]
[0.04]
[318] [353] [388] [424] [494][459] [530] [565][600] [671][636]
Middle
Low
High
Limit
Rated point
Airflow rate(m
3
/min)[CFM]
SEZ-KD18NA
(External static pressure 0.02[in.WG](5Pa)) 208/230V 60Hz
Airflow rate(m
3
/min)[CFM]
9 10111213141516171819
0
40
30
20
10
External static pressure [in.WG](Pa)
[0.16]
[0.12]
[0.08]
[0.04]
[318] [353] [388] [424] [494][459] [530] [565] [600] [671][636]
Middle
Low
High
Limit
Rated point
SEZ-KD18NA
(External static pressure 0.20[in.WG](50Pa)) 208/230V 60Hz
9 10111213141516171819
0
10
20
30
40
60
70
50
80
External static pressure [in.WG](Pa)
[0.32]
[0.28]
[0.24]
[0.20]
[0.16]
[0.12]
[0.08]
[0.04]
[318] [353] [388] [424] [494][459] [530] [565] [600] [671][636]
Middle
Limit
Rated point
Low
High
Airflow rate(m
3
/min)[CFM]
SEZ-KD18NA
(External static pressure 0.14[in.WG](35Pa)) 208/230V 60Hz
9 10111213141516171819
0
10
20
30
40
60
70
50
80
External static pressure [in.WG](Pa)
[0.32]
[0.28]
[0.24]
[0.20]
[0.16]
[0.12]
[0.08]
[0.04]
[318] [353] [388] [424] [494][459] [530] [565] [600] [671][636]
Airflow rate(m
3
/min)[CFM]
Middle
Limit
Rated point
Low
High

3400 Lawrenceville Suwanee Rd
Suwanee, GA 30024
Tele: 678-376-2900 • Fax: [phone]
Toll Free: 800-433-4822 (#3)
www.mehvac.com
Specications are subject to change without notice.
C SD - SEZ-KD18NA - 200903 © MITSUBISHI ELECTRIC / HVAC 2009
DImENSIoNS: SEZ-KD18NA
Unit : mm(in.)
(46-7/8)
1190
(39)
990
(31-1/8)
790
N
(48-25/32)
1239
(40-29/32)
1039
(33-1/16)
839
M
Drain pipe(O.D.ø32(1-1/4))
Terminal block (Remote controller transmission line)
Terminal block (Indoor/outdoor connecting line)
2
Refrigerant piping
flare connection (liquid)
ø12.7(1/2)
mm(in.)
(35-7/16)
(27-9/16)
(19-11/16)
(41-3/4)
(33-7/8)
(26)
(47-1/4)
(39-3/8)
(31-1/2)
(39-3/8)
(31-1/2)
(23-5/8)
(41-3/4)
(33-7/8)
(26)
(47-3/16)
(39-5/16)
(31-7/16)
(45-3/8)
(37-1/2)
(29-5/8)
(43-5/16)
(35-7/16)
(27-9/16)
700
Drain pipe(O.D.ø32(1-1/4))
(Emergency draining)
ø6.35(1/4)
ø9.52(3/8)
SEZ-KD15NA
900 952 998 860 9800 1000 860 7700 20
24
16
L
900
500
K
9
5
J
1060
660
H
800600
7
660798752
Knockout hole ø27(1-3/32)
(Remote controller transmission line)
Knockout hole ø27(1-3/32)
(Indoor/outdoor connecting line)
G
1200
F
1000
E
11
D
1060
C
1100
B
1152
SEZ-KD09NA
SEZ-KD12NA
SEZ-KD18NA
Model A
1198
Gas pipe Liquid pipe
L-ø2.9(1/8)
2X2-ø2.9(1/8)
2XE-ø2.9(1/8)
Control box
Air filter
Suspension bolt hole
4-14X30(9/16X1-3/16) Slot
Refrigerant piping
flare connection (gas)
1
12
Drain pipe(O.D.ø32(1-1/4))
(Spontaneous draining)
Air
inlet
Air
outlet
N
M
175±5(6-29/32±7/32)
Less than 300
Less than 550
(11-13/16)
(21-21/32)
More than 20
More than 10
57(2-1/4)
57(2-1/4)
(1-31/32 ~ 5-29/32)
(30-19/32)
(17-23/32)
(11-13/16)
(17-23/32)
More than 300
(13/16)
(13/32)
(3-9/16)
(5-29/32)
(2-25/32)(4-19/32)
70
10(13/32)
(3-15/16)
(1-15/16) (24-5/8)
450
37(1-15/32)
200(7-7/8)
H
157.5(6-7/32)20(13/16)
100(3-15/16)
37(1-15/32)
12(1/2)
12(1/2)
88(3-15/32)
100(3-15/16)XJ=K
100(3-15/16)
88(3-15/32)
777
50(1-31/32)
50 ~ 150
50(1-31/32)
G450
10(13/32)
49
25(1)
170(6-23/32)
102(4-1/32)
116
100 25(1)
23(29/32)
C
B (Suspension bolt pitch)23(29/32)
A
90
D (Duct)
100(3-15/16)X(E-1)=F
100(3-15/16)
15(19/32)
Drain hose (I.D.ø32(1-1/4))
<accessory>
(Actual length)
Note2
Access door
Required space for service and maintenance
Access door
Ceiling surface
Make the access door at the appointed position properly
for service maintenance.
Note1.Use M10 screw for the suspension bolt (field supply).
2.Keep the service space for the maintenance at the bottom.
3.This chart indicates for SEZ-KD15NA model,which has 3 fans.
SEZ-KD09,12NA models have 2 fans.
SEZ-KD18NA models have 4 fans.
4.In case an inlet duct is used,remove the air filter(supply with
the unit), then install the filter(field supply) at suction side.
159(6-9/32)
345(13-19/32)
20(13/16) 30(1-3/16)
23(29/32)
270(10-21/32)
20(13/16)
625(Suspension bolt pitch)
700(27-9/16)
677(26-21/32)
150(Duct)